Prickly Heath
- Peak month
- October
- Records since 2000
- 542
- Scientific name
- Gaultheria mucronata
Annual fescue
- Peak month
- June
- Records since 2000
- 540
- Scientific name
- Festuca myuros
Black Mustard
- Peak month
- June
- Records since 2000
- 540
- Scientific name
- Brassica nigra
Sharp-toothed Hawkweed
- Peak month
- August
- Records since 2000
- 540
- Scientific name
- Hieracium sabaudum
Strawberry Clover
- Peak month
- August
- Records since 2000
- 540
- Scientific name
- Trifolium fragiferum
Pepper-saxifrage
- Peak month
- June
- Records since 2000
- 535
- Scientific name
- Silaum silaus
Cypress Spurge
- Peak month
- May
- Records since 2000
- 534
- Scientific name
- Euphorbia cyparissias
Fig-leaved Goosefoot
- Peak month
- June
- Records since 2000
- 534
- Scientific name
- Chenopodium ficifolium
Water Purslane
- Peak month
- July
- Records since 2000
- 530
- Scientific name
- Lythrum portula
Fern-leaf Yarrow
- Peak month
- July
- Records since 2000
- 529
- Scientific name
- Achillea filipendulina
Purple Milk-vetch
- Peak month
- June
- Records since 2000
- 529
- Scientific name
- Astragalus danicus
Spear Mint
- Peak month
- August
- Records since 2000
- 529
- Scientific name
- Mentha spicata
Silver Ragwort
- Peak month
- June
- Records since 2000
- 526
- Scientific name
- Jacobaea maritima
Martagon Lily
- Peak month
- June
- Records since 2000
- 522
- Scientific name
- Lilium martagon
Bifid Hemp-nettle
- Peak month
- August
- Records since 2000
- 520
- Scientific name
- Galeopsis bifida
Ribbed Melilot
- Peak month
- July
- Records since 2000
- 520
- Scientific name
- Melilotus officinalis
Corky-fruited Water-dropwort
- Peak month
- June
- Records since 2000
- 518
- Scientific name
- Oenanthe pimpinelloides
Pampas Grass
- Peak month
- September
- Records since 2000
- 515
- Scientific name
- Cortaderia selloana
Heath Dog-violet
- Peak month
- May
- Records since 2000
- 513
- Scientific name
- Viola canina
Common Cornsalad
- Peak month
- April
- Records since 2000
- 511
- Scientific name
- Valerianella locusta
Bird's-nest Orchid
- Peak month
- May
- Records since 2000
- 509
- Scientific name
- Neottia nidus-avis
Sweet-flag
- Peak month
- July
- Records since 2000
- 509
- Scientific name
- Acorus calamus
Least Yellow-sorrel
- Peak month
- June
- Records since 2000
- 505
- Scientific name
- Oxalis exilis
Dodder
- Peak month
- July
- Records since 2000
- 503
- Scientific name
- Cuscuta epithymum
White Beak-sedge
- Peak month
- July
- Records since 2000
- 500
- Scientific name
- Rhynchospora alba
Tomato
- Peak month
- September
- Records since 2000
- 499
- Scientific name
- Solanum lycopersicum
Nodding Bur-marigold
- Peak month
- August
- Records since 2000
- 498
- Scientific name
- Bidens cernua
Quercus rosacea
- Peak month
- April
- Records since 2000
- 496
- Group
- Flowering plants
Round-leaved Fluellen
- Peak month
- July
- Records since 2000
- 494
- Scientific name
- Kickxia spuria
Californian Poppy
- Peak month
- June
- Records since 2000
- 493
- Scientific name
- Eschscholzia californica
Dittander
- Peak month
- July
- Records since 2000
- 491
- Scientific name
- Lepidium latifolium
Petty Whin
- Peak month
- May
- Records since 2000
- 490
- Scientific name
- Genista anglica
Greater Water-parsnip
- Peak month
- August
- Records since 2000
- 487
- Scientific name
- Sium latifolium
Mountain Everlasting
- Peak month
- June
- Records since 2000
- 487
- Scientific name
- Antennaria dioica
Perfoliate Alexanders
- Peak month
- May
- Records since 2000
- 487
- Scientific name
- Smyrnium perfoliatum
Blackberry
- Peak month
- April
- Records since 2000
- 486
- Scientific name
- Rubus fruticosus
Ficaria ambigua
- Peak month
- April
- Records since 2000
- 484
- Group
- Flowering plants
Lesser Meadow-rue
- Peak month
- June
- Records since 2000
- 483
- Scientific name
- Thalictrum minus
Bay
- Peak month
- April
- Records since 2000
- 481
- Scientific name
- Laurus nobilis
Few-flowered Spike-rush
- Peak month
- July
- Records since 2000
- 481
- Scientific name
- Eleocharis quinqueflora
Flossflower
- Peak month
- August
- Records since 2000
- 480
- Scientific name
- Ageratum houstonianum
Grey Club-rush
- Peak month
- July
- Records since 2000
- 480
- Scientific name
- Schoenoplectus tabernaemontani
Lavender-cotton
- Peak month
- June
- Records since 2000
- 480
- Scientific name
- Santolina chamaecyparissus
Tragopogon minor
- Peak month
- June
- Records since 2000
- 480
- Group
- Flowering plants
Garden Grape-hyacinth
- Peak month
- April
- Records since 2000
- 479
- Scientific name
- Muscari armeniacum
Peruvian Lily
- Peak month
- July
- Records since 2000
- 479
- Scientific name
- Alstroemeria aurea
New Zealand Flax
- Peak month
- July
- Records since 2000
- 476
- Scientific name
- Phormium tenax
Narcissus scaberulus
- Records since 2000
- 472
- Group
- Flowering plants
- NBN Atlas records since 2000
- 484